Table 3: Ht488 Hardwares; Pecification - Grandstream Networks HT-488 User Manual

T 2: HT488 T
ABLE ECHNICAL
Lines/SIP Accounts
Protocol Support
Feature Keys
LAN/WAN Interface
Device Management
DHCP Server/Client
Audio Features
Call Handling Features
Network and
Provisioning
Fax over IP
Security
T 3: HT488 H
ABLE ARDWARE
LAN interface
WAN interface
FXS port
FXO port (PSTN Port)
Button
LED
Universal Switching
Power Adaptor
Dimension
Weight
Temperature
Humidity
Compliance
Grandstream Networks, Inc.
S
PECIFICATIONS
2 lines / 2 SIP accounts
SIP 2.0 (RFC 3261), TCP/UDP/IP, RTP/RTCP, HTTP, ARP/RARP, ICMP, DNS, DHCP,
NTP, TFTP, PPPoE protocols
1 button
RJ-45 10 Mbps
Web interface or via secure (AES encrypted) central configuration file for mass
deployment
Support device configuration via built-in IVR, Web browser or central configuration file
through TFTP or HTTP
Support Layer 2 (802.1Q, VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS)
Auto/manual provisioning system
NAT-friendly remote software upgrade (via TFTP/HTTP) for deployed devices including
behind firewall/NAT
Syslog support
Yes
Advanced Digital Signal Processing (DSP)
Dynamic negotiation of codec and voice payload length
Support for G.723,1 (5.3K/6.3K), G.729A, G.711 µ/A, G.726, and iLBC codecs
In-band and out-of-band DTMF ((in audio, RFC2833, SIP INFO)
Silence Suppression, VAD (voice activity detection), CNG (comfort noise generation),
ANG (automatic gain control)
Adaptive jitter buffer control , Packet delay & loss concealment
Support volume amplification, Support configurable Call Progress Tones
Caller ID display or block, Call waiting caller ID, Call waiting/flash, Call transfer, hold,
forward, mute, 3-way conferencing
Manual or dynamic host configuration protocol (DHCP) network setup; RTP and NAT
support traversal via STUN
T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax
Pass-through (pending), Fax Datapump V.17, V.19, V.27ter, V.29 for T.38 fax relay
DIGEST authentication and encryption using MD5 and MD5-sess
S

PECIFICATION

1xRJ45 10Mbps
1xRJ45 10Mbps
1 x FXS
1x PSTN pass-through and life line port
1
Dual color (green/red)
Input: 100-240VAC 50-60 Hz / Output: +5VDC, 1200mA
UL certified
70mm (W) x 130mm (D) x 27mm (H)
0.6lbs (0.3kg)
°
40 - 130 F / 5 – 45
10% - 90% (non-condensing)
HT488 User Manual
Firmware 1.0.3.86
°
C
Page 8 of 31
Last Updated: 7/2007